ASTM D6354-12
(Guide)Standard Guide for Sampling Plan and Core Sampling of Carbon Cathode Blocks Used in Aluminum Production
Standard Guide for Sampling Plan and Core Sampling of Carbon Cathode Blocks Used in Aluminum Production
SIGNIFICANCE AND USE
Core sampling is an acceptable way of obtaining a test specimen without destroying the usefulness of a cathode block.
Test specimens obtained by this guide can be used by producers and users of cathode blocks for the purpose of conducting the tests in Note 1 to obtain comparative physical properties.
Sampling shall not weaken the cathode block or increase the likelihood of premature failure. Extreme care shall be exercised when taking vertically drilled samples.
SCOPE
1.1 This guide covers sampling of carbon cathode blocks used in the production of aluminum, and details procedures for taking samples from single cathode blocks. It covers equipment and procedures for obtaining samples from cathode blocks in a manner that does not destroy the cathode block or prevent its subsequent use as originally intended. However, the user must determine the subsequent use of the sampled cathode blocks. Preferred locations for taking samples from single units of cathode blocks are covered in this guide.
1.1.1 Information for sampling of shaped refractory products, in general, is given in ISO 5022. This standard details the statistical basis for sampling plans for acceptance testing of a consignment or lot. Cathode blocks used in the production of aluminum have specific requirements of sampling, and while the statistical basis for sampling given in ISO 5022 applies, further or modified requirements may also apply.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Note 1—The following ASTM standards are noted as sources of useful information: Test Methods C559, C611, C651, C747, C1025, C1039, and C1225.
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Designation: D6354 − 12
Standard Guide for
Sampling Plan and Core Sampling of Carbon Cathode
1
Blocks Used in Aluminum Production
This standard is issued under the fixed designation D6354; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* ments of Manufactured Carbon and Graphite Articles
C611 TestMethodforElectricalResistivityofManufactured
1.1 This guide covers sampling of carbon cathode blocks
Carbon and Graphite Articles at Room Temperature
used in the production of aluminum, and details procedures for
C651 Test Method for Flexural Strength of Manufactured
taking samples from single cathode blocks. It covers equip-
CarbonandGraphiteArticlesUsingFour-PointLoadingat
ment and procedures for obtaining samples from cathode
Room Temperature
blocks in a manner that does not destroy the cathode block or
C747 Test Method for Moduli of Elasticity and Fundamental
prevent its subsequent use as originally intended. However, the
Frequencies of Carbon and Graphite Materials by Sonic
usermustdeterminethesubsequentuseofthesampledcathode
Resonance
blocks.Preferredlocationsfortakingsamplesfromsingleunits
C1025 Test Method for Modulus of Rupture in Bending of
of cathode blocks are covered in this guide.
Electrode Graphite
1.1.1 Information for sampling of shaped refractory
C1039 Test Methods for Apparent Porosity, Apparent Spe-
products,ingeneral,isgiveninISO 5022.Thisstandarddetails
cific Gravity, and Bulk Density of Graphite Electrodes
the statistical basis for sampling plans for acceptance testing of
C1225 Specification for Fiber-Cement Roofing Shingles,
a consignment or lot. Cathode blocks used in the production of
Shakes, and Slates
aluminum have specific requirements of sampling, and while
3
the statistical basis for sampling given in ISO 5022 applies, 2.2 ISO Standards:
further or modified requirements may also apply. ISO 8007-1 Carbonaceous materials used in the production
of aluminum - Cathodic blocks - Sampling plan and
1.2 The values stated in SI units are to be regarded as
sampling from single cathodic blocks
standard. No other units of measurement are included in this
ISO 5022 Shaped refractory products - Sampling and accep-
standard.
tance testing
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3. Terminology
responsibility of the user of this standard to establish appro-
3.1 Definitions of Terms Specific to This Standard:
priate safety and health practices and determine the applica-
3.1.1 cathode block, n—one manufactured unit used as a
bility of regulatory limitations prior to use.
negative carbon electrode.
NOTE 1—The followingASTM standards are noted as sources of useful
3.1.2 sample, n—a portion of carbon obtained from a
information: Test Methods C559, C611, C651, C747, C1025, C1039, and
C1225. cathode block.
3.1.3 test specimen, n—a representative piece of a sample.
2. Referenced Documents
2
2.1 ASTM Standards:
4. Significance and Use
C559 Test Method for Bulk Density by Physical Measure-
4.1 Core sampling is an acceptable way of obtaining a test
specimen without destroying the usefulness of a cathode block.
1
4.1.1 Test specimens obtained by this guide can be used by
This guide is under the jurisdiction of ASTM Committee D02 on Petroleum
Products, Liquid Fuels, and Lubricants and is the direct responsibility of Subcom-
producers and users of cathode blocks for the purpose of
mittee D02.05 on Properties of Fuels, Petroleum Coke and Carbon Material.
conducting the tests in Note 1 to obtain comparative physical
Current edition approved April 15, 2012. Published May 2012. Originally
properties.
approved in 1998. Last previous edition approved in 2008 as D6354–98(2008).
DOI: 10.1520/D6354-12.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
the ASTM website. 4th Floor, New York, NY 10036, http://www.ansi.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D6354 − 12
4.2 Samplingshallnotweakenthecathodeblockorincrease 6.1.2 For cathode blocks with collector bar slots, samples
the likelihood of premature failure. Extreme care shall be shall be drilled from the cathode block, as shown in F
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:D6354–98 (Reapproved 2008) Designation:D6354–12
Standard Guide for
Sampling Plan and Core Sampling of Carbon Cathode
1
Blocks Used in Aluminum Production
This standard is issued under the fixed designation D6354; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope*
1.1 This guide covers sampling of carbon cathode blocks used in the production of aluminum, and details procedures for taking
test samples from single cathode blocks. It covers equipment and procedures for obtaining samples from cathode blocks in a
manner that does not destroy the cathode block or prevent its subsequent use as originally intended. However, the user must
determine the subsequent use of the sampled cathode blocks. Preferred locations for taking samples from single units of cathode
blocks are covered in this guide.
1.1.1 Information for sampling of shaped refractory products, in general, is given in ISO 5022. This standard details the
statistical basis for sampling plans for acceptance testing of a consignment or lot. Cathode blocks used in the production of
aluminum have specific requirements of sampling, and while the statistical basis for sampling given in ISO 5022 applies, further
or modified requirements may also apply.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory
limitations prior to use.
NOTE 1—The following ASTM standards are noted as sources of useful information: Test Methods C559, C611, C651, C747, C1025, C1039, and
C1225.
2. Referenced Documents
2
2.1 ASTM Standards:
C559 Test Method for Bulk Density by Physical Measurements of Manufactured Carbon and Graphite Articles
C611 Test Method for Electrical Resistivity of Manufactured Carbon and Graphite Articles at Room Temperature
C651 Test Method for Flexural Strength of Manufactured Carbon and Graphite Articles Using Four-Point Loading at Room
Temperature
C747 Test Method for Moduli of Elasticity and Fundamental Frequencies of Carbon and Graphite Materials by Sonic
Resonance
C1025 Test Method for Modulus of Rupture in Bending of Electrode Graphite
C1039 Test Methods for Apparent Porosity, Apparent Specific Gravity, and Bulk Density of Graphite Electrodes
C1225 Specification for Fiber-Cement Roofing Shingles, Shakes, and Slates
3
2.2 ISO Standards:
ISO 8007-1 Carbonaceous materials used in the production of aluminum - Cathodic blocks - Sampling plan and sampling from
single cathodic blocks
ISO 5022 Shaped refractory products - Sampling and acceptance testing
3. Terminology
3.1Definitions: Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 block—a carbon cathode, a single unit. cathode block, n—one manufactured unit used as a negative carbon electrode.
1
This guide is under the jurisdiction of ASTM Committee D02 on Petroleum Products and Lubricants and is the direct responsibility of Subcommittee D02.05 on
Properties of Fuels, Petroleum Coke and Carbon Material.
Current edition approved Oct.April 15, 2008.2012. Published December 2008.May 2012. Originally approved in 1998. Last previous edition approved in 20032008 as
D6354–98(20038). DOI: 10.1520/D6354-98R08.10.1520/D6354-12.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D6354–12
3.1.2 sample—the portion of carbon obtained from a cathode. sample, n—a portion of carbon obtained from a cathode block.
3.1.3 test specimen—an article prepared from a sample. test specimen, n—a representative piece of a sample.
4. Significance
...
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